Mäuse
Expense tracker for couples
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Meet the new Voice Mode: clearer expense drafts, easy spoken corrections, and no separate transcription charges. Built for shared expenses and separate accounts.
Separate accounts. Shared life. Mäuse is the expense tracker built for couples who want to share everyday costs without sharing a bank account.
The name Mäuse is German slang for "money" - a playful fit for keeping shared finances in balance.
Record what you paid, choose a fair split, and always know what needs to be settled at the end of the month.
BUILT FOR TWO
• Track groceries, rent, trips, meals out, and other shared costs
• Split by percentage or enter the exact amount your partner should cover
• See monthly totals, your partner's share, and the current balance at a glance
• Move easily between previous and upcoming months
CAPTURE IT BEFORE YOU FORGET
Open a new expense straight from a Home Screen or Lock Screen widget, the Lock Screen, or Control Center. Manual entry takes seconds.
OR JUST SAY IT
Optional Voice Mode turns what you say into one or more expense drafts using GPT-Realtime-2.1. Review drafts in a compact list, correct them by voice, and expand “What I understood” to see your requests and corrections in order. Animated feedback shows when Mäuse is listening or processing. Nothing is added to your expenses until you tap Save.
Voice capture works in one session, without a separate transcription service or its additional charges.
PRIVATE BY DEFAULT
• No Mäuse account required
• Expenses are stored on your iPhone
• No advertising or cross-app tracking
• Export and restore a portable JSON backup
• Manual entry works offline
Optional Voice Mode requires your own compatible OpenAI API key. Only during a voice session, and after you consent, microphone audio, spoken expense details, and the current voice drafts are sent directly to OpenAI. OpenAI API usage charges may apply.
Enjoy Dark Mode, or choose light or system appearance.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
A better Voice Mode
A newer AI model improves recognition of spoken numbers and letters. Voice capture now works without separate transcription charges.
A clearer way to review
See your expenses in a compact list, correct them by voice, and review your requests in “What I understood.” New animations show when Mäuse is listening or processing. You stay in control of what gets saved.
Improvements for iOS 27
More flexible layouts for the welcome screen, expense editor, and calendar, plus more reliable backups, fixes for editing large amounts, and better recovery when voice capture is interrupted.
The developer, Michael Diestelberg, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Financial Info
- User Content
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Michael Diestelberg
- Size
- 4.8 MB
- Category
- Finance
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and German
- Age Rating
4+
- 4+
- Copyright
- © 2026 Michael Diestelberg